And vaenum t



- (No Model.)

A. R. YOUNG 8: V. T. BARBER.

SADDLE FOR THE TOP ROLLS 0F SPINNING FRAMES.

Patented Aug. 24, 1886.

-' FIBIII INVENTDRfi WITNESSES N. PETERS, Fmwum n rm, Washington. D. c

UNITED STATES ADELBERT R. YOUNG, OF JEWVETT CITY, CONNECTICUT, ANDVARNUM T. BARBER, OF NFAV BEDFORD, MASSACHUSETTS.

SADDLE FOR THE TOP ROLLS OF SPINNING-FRAMES.

SPECIFICATION forming part of Letters Patent No. 3%7310, dated August24, 1886.

Application filed June 16, 1883. Serial No. 98,314. (No model.)

To all whom it may concern:

Be it known that We,ADELBERT It. YOUNG, of Jewettcity, in the county ofNew London and State of Connecticut, and VARNUM T. BARBER, ofNewBedford,in the county of Bristol and State of Massachusetts, havejointly invented a new and useful Improvement in Saddles for the TopRolls of Spiuning-Frames; and we do hereby declare that the followingspecification, taken in connection with the accompanying drawings,forming a part of the same, is a full, clear, and exact descriptionthereof.

it is well known to persons familiar with the art of spinning that yarnsare spun from what is technically known as roving, which usually passesthrough three sets of drawingrolls running at unequal speeds,so asgradually to reduce the size of the roving by drawing out its filamentsand determine the number or size of the yarn to be spun by the spindles.art heretofore saddles have been used for the purpose of applying thepressure of a weight to two or more top rolls in a set, and therebycause the rolls to take hold firmly upon the roving and prevent it fromwinding about the rolls, as well as to insurea proper performance of thedrawing operation. When the roving is composed of long staple cotton, itis desirable that pressure should be applied to the two outer sets ofrolls only, which is accomplished by using asaddle bearing upon the twoouter top rolls and elevated above the middle roll, and when shortstaple cotton is used the pressure needs to be applied to all threerolls, which is effected by substituting another saddle, adapted to bearupon the three rolls. Heretofore such saddles have been made of wood andof iron,and their bearing-faces have required to be lubricated in orderto reduce friction. The lubrication of the saddle often causes a foulingof the sliver and the rolls, and therefore is objectionable. The saddlesused heretofore, as far as I am aware, have been dead-pressuresaddles-that is, they have not been constructed or arranged so as toyield under the pressure of the weight; hence any eccentricity in therolls will cause them to grind into the sliver and weaken the fiber ofthe yarn.

This invention consists in. a saddle made in Inthe.

two parts, which are adjustable lengthwise relatively to each other. andwhich is also capable of being adjusted so that pressure can be appliedto all three rolls or to the outermost rolls only, and so that thepressure upon the middle roll can be varied.

The invention further consists in a saddle having yielding members,whereby any injury to the sliver due to an eccentricity of the rollswill be prevented by the elasticity of the saddle.

Referring to the drawings, Figure l represents in vertical transversesection a portion of a spinning-frame to which the improved saddle isapplied. Fig. 2 shows a top view of the same. Fig. 3 is a side view ofour improved saddle mounted in place upon the three top rolls, andshowing the saddle adjusted so as to bear lightly upon the middle roll,the

three top rolls being shown in section. Fig. 4 is also a side View ofour improved saddle mounted upon the three top rolls,and showing thesaddle arranged to bear only upon the two outermost rolls, the three toprolls being represented in section. Fig. ,5 shows'the saddle inperspective.

A A A are three top rolls of a set, and B B'B are the under fluted rollsworking therewith. Pressure is applied to these rolls by a weight, C,Fig. 1, which is hung upon the lever D, having a fulcrum in an eye, d,and connected to the saddle in the usual manner by a link, E.

The saddle is composed of two adjustable parts, F F, having detachablefacings G G, respectively. Preferably, these facings are of rawhide,which possesses the necessarycompactness for forming a hard bearing, andrequires no lubrication. As hereinbefore stated, this latter feature isof great advantage, since all fouling of the sliver and rolls isprevented. The facings G Gare secured to the base members ff of the twoparts of the saddle by means of ears 0 projecting from said members andclasping the sides and ends of the facings, as shown in Figs. 1, 3,4,and 5, although any other suitable means for the purpose may be IOO foccupies a generally higher plane than the spring-arm f 1 and partiallyoverlies the latter, and its end is made to bear upon the saidspring-arm f, as shown at Fig. 5, andis capable of being movedlongitudinally thereon in adjusting the saddle. The arm j" is furnishedwith two ears, k, which are provided with a series of notches arrangedupon the upper edges of the said ears k in progressively as cendingplanes or steps. The oflice of these notches is to hold and support theloop or link K, which is jointed to the base memberf, and by means ofsuch loop and the notched ears the face of the portion G of the saddlerelatively to the shalt of the middle roll, A, can be raised or loweredat pleasure, so as to exert a greater or less pressure upon such middleroll. The loop Kis in the general form of an open rectangle, and the armf 3 passes through it, as clearly indicated at Fig. 5.

As shown in Figs. 3, 4, and 5, the facing G has a portion, 9, of itsface concaved to engage the shal't of the roll A. The facing G has aportion, 9, of its face concaved to engage the shaft of the roll A, andthis facing is of suflicient length to bear upon the shaft of the middleroll, A.

The saddle is mounted on the rolls, as shown in Figs. 1, 2, 3, and at.When short staple cotton is used and it is desirable to have pressureapplied to the roll A, the loop K is swung into the position shown inFigs. 1 and 5, in which position it does not supportthat end of the partF of the saddle to which it is attached, thereby allowing the pressureof the weight 0 to be applied to the roll A. When the length of thestaple of the cotton is such that only a light pressure on the roll A isdesired, the loop K is placed upon the lower notches in the ears k, asshown in Fig. 3,thereby relieving the roll A of some of the pressure ofthe weight, and when no pressure upon the roll A is desired, as whenlong staple cotton is being used, the loop is moved into the highestnotches in the ears k, as shown in Fig. 4, thereby raising the facing Gfrom the shaft of the roll A.

From the foregoing it will be readily under-v stood that the saddle,being made in two parts,

F F, can be used upon top rolls whose distances from centers maybevaried within ceras circumstances require; that by the use of therawhide facings G G no artificial lubrication of the bearings of thesaddle is necessary, and that by giving to one or both of the arms f f aspring function the saddle is made elastic, so as to yield to anyeccentricity of the rolls and prevent them from injuring the sliver. Asa fact incidental to this elasticity of the saddle, it has been foundthat the coverings of the top rolls do not become indented by the flutesof the lower rolls, as is the case when thedead-pressuresaddlesof woodor iron, heretofore used, are employed.

What we claim as our invention, and desire to secure by Letters Patent,isa 1. An improved saddle for top rolls, composed of two membersadjustable lengthwise relatively to each other, and provided withsuitable means, as described, for adjusting the saddle so that it mayexert pressure upon all the rolls or only upon the outermost ones of 5the s ries. substantially as described.

2. An improved saddle for top rolls, composed of two springformedmembers, and constructed,as described,to exert a yielding pressure uponthe rolls under the influence of a weight applied to the saddle,substantially as described.

3. In a saddle for top rolls,-the combination of a metallic framecomposed of two members adjustable lengthwise relatively to each other.facings of rawhide secured to such frame, and devices, substantially asdescribed, for causing the saddle to exert pressure upon all the rollsor only upon the outermost ones of the series, as specified.

4. The combination, substantially as hereinbefore set forth, of themember F, having a springarm, f, and stirrup K, and the member F, havingan arm, f, provided with the notched ears or'steps k.

ADELBERT R. YOUNG. VARNUM T. BARBER. Witnesses:

W. H; THURSTON, S. J. MURPHY.

